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戴维南等效电路，开路电压为什么这样算?

戴维南等效电路，开路电压为什么这样算?10V怎么来的，求教！

2025-03-28 19:24:34

推荐回答（2个）

回答1：

a、b 点分别在两个并联支路的中间，我分解开来计算：

Va = 60 * 24/(24+12) = 40V

Vb = 60 * 24/(24+24) = 30V

Uab = Va - Vb = 10V

Rab = 12//24 + 24//24 = 20Ω

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回答2：

由戴维南等效电路与诺顿等效电路的关系推得的。

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